Ray detection tool and detection method for casting

Abstract

The invention relates to the technical field of casting detection, in particular to a ray detection tool for castings and a detection method. The ray detection tool comprises a tool trolley module, a supporting arm module and a clamping module. The ray detection tool for the casting and the detection method are used for horizontally clamping the titanium alloy casting with a process chuck, so that the operation difficulty of the casting with the process chuck in the detection process is reduced, and the detection consistency is improved; the device can adapt to clamping ray detection of titanium alloy castings with different lengths and integrated process chucks, and the practical flexibility and universality of the device are improved; rotation, overturning and height adjustment during radiographic inspection of the titanium alloy casting with the integrated process chuck can be realized, the manual operation difficulty is reduced, and the detection consistency and the detection efficiency are improved; and meanwhile, the tool is designed by clamping the process chuck, so that the surface of the casting can be prevented from being scratched and scratched in the casting clamping process, and the structure is reliable and stable.

Description

Technical Field

[0001] This application relates to the field of casting inspection technology, and in particular to a radiographic inspection fixture and inspection method for castings. Background Technology

[0002] Titanium alloys, due to their outstanding characteristics such as high strength, low density, excellent corrosion resistance, and stable high-temperature performance, have become core application materials in critical aerospace fields. In these fields, titanium alloy castings often serve as core load-bearing components, and their internal quality directly affects the operational safety and reliability of the entire equipment. In the production and processing of titanium alloy castings, to solve the positioning and clamping challenges in subsequent machining processes, reduce positioning errors caused by secondary clamping, and improve machining accuracy and production efficiency, some castings adopt an integrated design during the casting stage. That is, the casting body and the process chucks at both ends are formed simultaneously through a single casting, creating an inseparable titanium alloy casting structure with integrated process chucks.

[0003] However, existing X-ray inspection fixtures, when used to inspect titanium alloy castings with integrated process chucks, do not consider the structural differences between the integrated process chuck and the casting itself. They are mostly developed for conventional castings without chucks or for independent workpieces, resulting in limited adjustment range of clamping dimensions. Secondly, the positioning mechanisms of existing fixtures largely rely on manual adjustment, and the adjustment accuracy is greatly affected by the operator's experience, easily leading to positioning deviations. Thirdly, titanium alloy castings have high surface hardness but are also brittle. The clamping components of existing fixtures are mostly made of metal without surface protection treatment, easily generating rigid friction with the casting surface during clamping, resulting in indentations and scratches. Therefore, existing X-ray inspection fixtures cannot fully adapt to the structural characteristics and inspection requirements of titanium alloy castings with integrated process chucks, exhibiting problems such as poor adaptability, insufficient positioning accuracy, weak versatility, low inspection efficiency, and easy damage to castings. This makes it difficult to guarantee the accuracy and reliability of inspection results, failing to meet the urgent needs of key fields for high-quality, high-efficiency inspection of titanium alloy castings. Summary of the Invention

[0004] The main objective of this invention is to provide a radiographic inspection fixture and method for castings, aiming to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention proposes a radiographic inspection fixture for castings, comprising a fixture carriage module, a support arm module, and a clamping module; the fixture carriage module comprises a main frame, a first track disposed on the main frame and arranged vertically, and a first slider slidably connected to the first track; The support arm module includes a crossbeam located on one side of the first slider, a first rotating assembly rotatably connecting the middle of the crossbeam to the first slider, and a first linear transmission assembly mounted on the main frame. The first rotating assembly drives the crossbeam to rotate relative to the first slider around a pivot axis. The first linear transmission assembly adjusts the position of the first slider on the first track. The clamping module includes a second track along the length of the crossbeam, two second sliders slidably connected to the second track, two clamping rods respectively mounted on the two second sliders, two clamping claws located on opposite sides of the two clamping rods, a second rotating assembly rotatably connecting the two clamping claws to the two clamping rods respectively, and a second linear transmission assembly mounted on the crossbeam. The second rotating assembly drives the two clamping claws to rotate relative to the two clamping rods around a pivot axis. The second linear transmission assembly adjusts the position of the two second sliders on the second track.

[0006] In some embodiments of the invention, at least the surface of the clamping jaws that is in contact with the casting process chuck is made of an elastic material.

[0007] In some embodiments of the present invention, the gripping claw is detachably connected to the second rotating assembly via a quick-change positioning pin.

[0008] In some embodiments of the present invention, the clamping claw is a box-shaped structure with one end open, and the opening of the clamping claw is positioned opposite the other clamping claw.

[0009] In some embodiments of the present invention, the first rotating assembly includes a first rotating unit and a first geared motor. The first rotating unit rotatably connects the crossbeam and the first slider. The first geared motor is mounted on the first slider. The output shaft of the first geared motor is connected to the crossbeam. The first geared motor drives the crossbeam to rotate via the first rotating unit.

[0010] Preferably, the first geared motor is provided with a first scale for identifying the rotation angle of the crossbeam driven by the first geared motor.

[0011] In some embodiments of the present invention, the first linear transmission assembly includes a lead screw, which is mounted on the main frame along the length of the first track, the lead screw is rotatable about its own axis, and the lead screw passes through a first slider and is threadedly connected to the first slider.

[0012] Preferably, a limit baffle is fixed on the main frame at the top of the lead screw.

[0013] Preferably, a first scale is provided on the main frame along the length of the first track.

[0014] In some embodiments of the present invention, the second rotating assembly includes a second geared motor and two second rotating units. The two second rotating units respectively rotatably connect two clamping jaws to two clamping rods. The second geared motor is mounted on one of the clamping rods, and the output shaft of the second geared motor is connected to the corresponding clamping jaw. The second geared motor drives the clamping jaw to rotate via the second rotating units.

[0015] Preferably, the second geared motor is provided with a second scale for identifying the rotation angle of the gripper driven by the second geared motor.

[0016] In some embodiments of the present invention, the second linear transmission assembly includes a double-ended screw and a third geared motor. The double-ended screw is mounted on a crossbeam along the length of the second track and is rotatable about its own axis. The two opposite threads of the double-ended screw pass through two second sliders and are threadedly connected to the second sliders. The third geared motor is mounted on the crossbeam and its output shaft is coaxially connected to the double-ended screw.

[0017] Preferably, a second scale is provided on the crossbeam along the length of the second track.

[0018] In some embodiments of the present invention, the bottom of the main frame is provided with a plurality of universal wheels with locking buckles.

[0019] To achieve the above objectives, the present invention also proposes a radiographic inspection method for castings, the radiographic inspection method being based on the aforementioned radiographic inspection fixture for castings, and the radiographic inspection method comprising the following steps: Outside the X-ray room, the casting is clamped: the height of the first slider and crossbeam is lowered by the first linear transmission assembly, so that the two clamping jaws are located on both sides of the two process chucks of the casting. The distance between the two second sliders is reduced by the second linear transmission assembly, so that the two clamping jaws clamp and fix the casting through the two process chucks. Then, the height of the first slider and crossbeam is raised by the first linear transmission assembly. The main frame is moved to the X-ray room: the main frame and the casting on it are moved to the X-ray room, and the relative position of the X-ray machine and the casting is adjusted. X-ray inspection: according to the zoning position of the casting, the left and right rotation angles of the crossbeam and the casting are controlled by the first rotating assembly, and the 360-degree rotation of the clamping jaws and the casting is controlled by the second rotating assembly. The X-ray machine is used to perform all-round X-ray inspection on the casting.

[0020] Compared with the prior art, the present invention achieves the following technical effects: 1. The X-ray inspection fixture of the present invention has the advantages of strong adaptability, accurate positioning, good versatility, high efficiency of operation and avoidance of clamping damage for titanium alloy castings with integrated process chucks. It effectively solves the technical problems of difficult operation, low inspection efficiency, poor inspection consistency and inability to protect the surface of castings when X-ray inspecting titanium alloy castings with integrated process chucks.

[0021] 2. The clamping claw unit of the present invention is specially designed for the structural features of integrated process chucks. It adopts a combination structure of adjustable clamping claws and contoured clamping surfaces, which can adapt to process chucks of different thicknesses, achieve stable clamping of process chucks, effectively avoid the problem of unstable clamping or falling off caused by the special structure of the chuck, and effectively improve the clamping reliability.

[0022] 3. The main frame of the present invention adopts an avoidance design. Through the support arm module, the flip-up clamping claw and the first and second rotating units, the key detection areas of the casting body are accurately detected, the blind spots are completely eliminated, and the X-ray beam can completely cover the parts to be detected, which significantly improves the comprehensiveness and accuracy of defect detection.

[0023] 4. This invention integrates a five-axis precision fine-tuning mechanism with a scale and dial, and combined with the positioning reference function of the process chuck, it can achieve millimeter-level precision calibration of the relative position of the casting body with the X-ray source and film, with the positioning error controlled within ±0.02mm, effectively avoiding defects missed or misjudged due to positioning deviation.

[0024] 5. The clamping jaws of this invention are equipped with quick-change positioning pins, which can quickly adapt to different specifications of process chuck sizes without disassembling or replacing parts. The workpiece clamping and replacement time is reduced by more than 50%, greatly reducing the complexity of operation. Different types and specifications of titanium alloy castings with integrated process chucks can be quickly switched without readjusting tooling parameters. The single batch inspection efficiency is increased by more than 40%, which fully meets the high-efficiency inspection needs in mass production scenarios.

[0025] 6. The clamping claws of this invention are made of highly elastic and wear-resistant flexible protective materials, which reduces rigid friction during the clamping process and completely eliminates indentations and scratches on the surface of the process chuck, achieving a 100% surface integrity rate for castings.

[0026] 7. The adjustment range of the clamping jaws of this invention covers the specifications of mainstream titanium alloy castings with integrated process chucks, eliminating the need for custom tooling for different specifications of workpieces, greatly reducing the R&D and manufacturing costs of special tooling, and reducing tooling investment costs by more than 30%.

[0027] 8. The tooling of this invention adopts a modular design. The tooling car module, support arm module, and clamping module can be disassembled and assembled without replacing the entire tooling, thereby improving equipment utilization and reducing the overall investment cost of the testing line.

[0028] 9. This invention integrates a visual positioning auxiliary system such as a ruler and dial, allowing operators to quickly adjust the positioning and clamping of castings without relying on professional experience, reducing the skill level requirements, reducing human error by more than 70%, further improving the consistency and stability of the inspection process, while reducing the labor intensity of operators and lowering labor costs. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the X-ray inspection fixture for castings according to the present invention; Figure 2 This is a side view of the X-ray inspection fixture for castings according to the present invention.

[0030] The labels in the attached diagram are as follows: 101. Main frame; 102. Casters; 103. First track; 104. First slider; 105. First scale; 201. Lead screw; 202. Limiting baffle; 203. First geared motor; 204. Crossbeam; 205. First dial; 206. First rotating unit; 301. Second geared motor; 302. Clamping rod; 303. Clamping claw; 304. Second dial; 305. Second rotating unit; 306. Second track; 307. Third geared motor; 308. Second scale; 309. Second slider. Detailed Implementation

[0031] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0032] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0034] This application discloses a radiographic inspection fixture for castings. For example... Figure 1 and Figure 2 As shown, the X-ray inspection fixture includes a fixture carriage module, a support arm module, and a clamping module.

[0035] The tooling module includes a main frame 101, a first track 103, and a first slider 104; the first track 103 is mounted on the main frame 101 and arranged vertically; the first slider 104 is slidably connected to the first track 103.

[0036] The support arm module includes a crossbeam 204, a first rotating assembly, and a first linear transmission assembly. The crossbeam 204 is located on one side of the first slider 104. The middle part of the crossbeam 204 is rotatably connected to the first slider 104 through the first rotating assembly. The first rotating assembly is used to drive the crossbeam 204 to rotate relative to the first slider 104 around the rotating axis. The first linear transmission assembly is mounted on the main frame 101 and is used to adjust the position of the first slider 104 on the first track 103.

[0037] The clamping module includes a second track 306, two second sliders, two clamping rods 302, two clamping claws 303, a second rotating assembly, and a second linear transmission assembly. The second track 306 is arranged along the length of the crossbeam 204. The two second sliders are slidably connected to the second track 306. The two clamping rods 302 are respectively mounted on the two second sliders. The two clamping claws 303 are respectively mounted on opposite sides of the two clamping rods 302 via the second rotating assembly. The second rotating assembly is used to drive the two clamping claws 303 to rotate relative to the two clamping rods 302 around a rotating shaft. The second linear transmission assembly is mounted on the crossbeam 204 and is used to adjust the position of the two second sliders on the second track 306.

[0038] In this invention, through the close connection of three modules—the tooling vehicle module, the support arm module, and the clamping module—when X-ray inspection of a casting is required, firstly, outside the X-ray machine room, the height of the first slider 104 and the crossbeam 204 is lowered by the first linear transmission assembly, so that the two clamping claws 303 are located on both sides of the two process chucks of the casting. Then, the distance between the two second sliders is reduced by the second linear transmission assembly, so that the two clamping claws 303 clamp and fix the casting through the two process chucks. Then, the height of the first slider 104 and the crossbeam 204 is raised by the first linear transmission assembly. Then, the main frame 101 and the casting on it are moved to the X-ray machine room, and the relative position of the X-ray machine and the casting is adjusted. Afterward, according to the zoning position of the casting, the left and right rotation angles of the crossbeam 204 and the casting are controlled by the first rotation assembly, and the 360-degree rotation of the clamping claws 303 and the casting is controlled by the second rotation assembly, so that the X-ray machine can perform all-round X-ray inspection of the casting, achieving precise positioning and blind-spot-free X-ray inspection of the casting.

[0039] This invention adjusts the distance between the two second sliders and the two clamping jaws 303 through a second linear transmission component, enabling the X-ray inspection fixture to adapt to titanium alloy castings with integrated process chucks of different lengths. This improves the practicality, flexibility, and versatility of the invention, making it suitable for X-ray inspection of various titanium alloy castings with integrated process chucks. Secondly, by using a first and second rotating component in conjunction with a first linear transmission component, this invention enables rotation, flipping, and height adjustment of titanium alloy castings with integrated process chucks during X-ray inspection, reducing the difficulty of manual operation and improving inspection consistency and efficiency. Finally, the X-ray inspection fixture design of this invention, by using the process chuck, avoids scratches and other damage to the casting surface during clamping, ensuring a reliable and stable structure.

[0040] In some embodiments of the invention, at least the surface of the gripper 303 that is in contact with the casting process chuck is made of an elastic material.

[0041] In this embodiment, the entire clamping jaw 303 or the surface that contacts the casting process chuck can be made of a flexible protective material with high elasticity and high wear resistance to reduce rigid friction during the clamping process, completely eliminate indentations and scratches on the surface of the process chuck, and make the surface integrity rate of the casting reach 100%.

[0042] In some embodiments of the present invention, the gripper 303 is detachably connected to the second rotating assembly via a quick-change positioning pin.

[0043] In this embodiment, when clamping other castings, the quick-change positioning pin on the second rotating assembly can be removed according to the size and shape of the process chuck of the casting, and other clamping jaws can be switched. The clamping jaw 303 unit of the present invention is equipped with a quick-change positioning pin to be detachably connected to the second rotating assembly. It can quickly adapt to different specifications of process chuck sizes without disassembling and replacing more parts. The workpiece clamping and replacement time can be shortened by more than 50%, greatly reducing the complexity of operation. Different types and specifications of titanium alloy castings with integrated process chucks can be quickly switched without re-adjusting tooling parameters. The single batch inspection efficiency is improved by more than 40%, which fully meets the high-efficiency inspection requirements in mass production scenarios.

[0044] In some embodiments of the present invention, such as Figure 1 As shown, the clamping claw 303 is a box-shaped structure with one end open, and the opening of the clamping claw 303 is positioned opposite the other clamping claw 303.

[0045] In this embodiment, the opening shape of the clamping jaw 303 is adapted to the process chuck of the casting, so that the process chuck can be partially or completely inserted into the clamping jaw 303 or pulled out of the clamping jaw 303 by adjusting the distance between the two second sliders through the second linear transmission component. This enables convenient and quick installation and removal of the casting, and effectively ensures the stability of the casting on the tooling.

[0046] Preferably, the clamping claw 303 adopts a clamping surface design that conforms to the process chuck of the casting.

[0047] In some embodiments of the present invention, the process chuck of the casting is further locked by locking screws and clamping jaws 303. In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the first rotating assembly includes a first rotating unit 206 and a first geared motor 203. The first rotating unit 206 rotatably connects the crossbeam 204 and the first slider 104. The first geared motor 203 is mounted on the first slider 104. The output shaft of the first geared motor 203 is connected to the crossbeam 204. The first geared motor 203 drives the crossbeam 204 to rotate via the first rotating unit 206.

[0048] In this embodiment, the first rotating unit 206 achieves a tight connection between the support arm module and the tooling car module. By controlling the first rotating unit 206 to rotate left and right through the first reduction motor 203, the crossbeam 204 and the castings on the crossbeam 204 can be adjusted to different angles, thereby enabling all-round inspection of the castings.

[0049] In some embodiments of the present invention, the first rotating unit 206 may adopt a rotating structure of rotating shaft-bearing. For example, the outer ring of the bearing is fixed to the first slider 104 through a mounting seat, the rotating shaft is interference-fitted with the inner ring of the bearing and fixed to the crossbeam 204, and then the output shaft of the first reduction motor 203 is fixed to the rotating shaft. When the first reduction motor 203 rotates in the forward or reverse direction, its output shaft drives the rotating shaft and the crossbeam 204 to rotate.

[0050] In some embodiments of the present invention, such as Figure 1 As shown, the first geared motor 203 is provided with a first scale 205 for identifying the rotation angle of the crossbeam 204 driven by the first geared motor 203.

[0051] In this embodiment, the rotation parameters of the crossbeam 204 and the casting can be visualized through the first dial 205, and the parameters can be recorded to the corresponding partition position of the casting to be fixed in the inspection process, so as to provide reliability for the consistency inspection of subsequent products.

[0052] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the first linear transmission assembly includes a lead screw 201, which is mounted on the main frame 101 along the length of the first track 103. The lead screw 201 is able to rotate around its own axis and passes through the first slider 104 and is threadedly connected to the first slider 104.

[0053] In this embodiment, when it is necessary to raise or lower the first slider 104 and the crossbeam 204 to install or disassemble the casting, the screw 201 can be rotated by a handheld electric gun to move the first slider 104, thereby driving the crossbeam 204 to move up and down, and finally adjusting the crossbeam 204 to different heights.

[0054] In other embodiments of the present invention, the lead screw 201 may also be driven by a geared motor mounted on the main frame 101.

[0055] In other embodiments of the present invention, the lead screw 201 may be installed in the first track 103 via a bearing and a bearing housing.

[0056] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, a limit baffle 202 is fixed on the main frame 101 at the top of the lead screw 201.

[0057] In this embodiment, the limiting baffle 202 is used to control the upward movement of the lead screw 201 and prevent the first slider 104 from disengaging from the first track 103.

[0058] In some embodiments of the present invention, such as Figure 2 As shown, a first scale 105 is provided on the main frame 101 along the length direction of the first track 103.

[0059] In this embodiment, the first scale 105 can visualize the vertical movement distance of the first slider 104 on the first track 103, and the height parameter can be recorded to the corresponding partition position of the corresponding casting to be fixed in the inspection process, so as to provide reliability for the consistency inspection of subsequent products.

[0060] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the second rotating assembly includes a second geared motor 301 and two second rotating units 305. The two second rotating units 305 respectively rotatably connect two clamping claws 303 to two clamping rods 302. The second geared motor 301 is mounted on one of the clamping rods 302. The output shaft of the second geared motor 301 is connected to the corresponding clamping claw 303. The second geared motor 301 drives the clamping claw 303 to rotate via the second rotating unit 305.

[0061] In this embodiment, the gripper 303 is controlled by the second reduction motor 301 and the second rotation unit 305 to achieve 360° rotation of the gripper 303. In conjunction with the first rotation unit 206 and the first reduction motor 203, X-ray inspection of the casting at different angles / positions can be achieved.

[0062] In some embodiments of the present invention, the second rotating unit 305 may adopt a rotating structure of rotating shaft-bearing. For example, the outer ring of the bearing is fixed to the clamping rod 302 through the mounting seat, the rotating shaft is interference-fitted with the inner ring of the bearing and directly and detachably connected to the clamping claw 303 or indirectly and detachably connected through the intermediate block, and then the output shaft of the second reduction motor 301 is fixed to the rotating shaft. When the second reduction motor 301 rotates in the forward or reverse direction, its output shaft drives the rotating shaft, the clamping claw 303 and the casting to rotate.

[0063] In some embodiments of the present invention, such as Figure 2 As shown, the second geared motor 301 is provided with a second scale 304 for identifying the rotation angle of the gripper 303 driven by the second geared motor 301.

[0064] In this embodiment, the rotation parameters of the casting can be visualized through the second dial 304, and the parameters can be recorded to the corresponding partition position of the casting to be fixed in the inspection process, so as to provide reliability for the consistency inspection of subsequent products.

[0065] In some embodiments of the present invention, such as Figure 1 and Figure 2As shown, the second linear transmission assembly includes a double-ended screw and a third geared motor 307. The double-ended screw is mounted on the crossbeam 204 along the length of the second track 306. The double-ended screw can rotate around its own axis. The two opposite threads of the double-ended screw pass through the two second sliders and are threadedly connected to the second sliders. The third geared motor 307 is mounted on the crossbeam 204, and the output shaft of the third geared motor 307 is coaxially connected to the double-ended screw.

[0066] In this embodiment, the clamping module and the support arm module are connected by a second linear transmission assembly and two first sliders 104, realizing the system connection between the support arm module and the clamping module. The third reduction motor 307 controls the relative extension and retraction of the two second sliders through a double-headed screw, thereby realizing the clamping of castings with process chucks of different lengths.

[0067] In some embodiments of the present invention, such as Figure 1 As shown, a second scale 308 is provided on the crossbeam 204 along the length of the second track 306.

[0068] In this embodiment, the distance between the two second sliders on the second slide rail can be visualized by the second scale 308, and the distance parameters can be recorded to the corresponding casting to be fixed in the inspection process, thereby achieving consistent fixing of the same casting in the future.

[0069] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the bottom of the main frame 101 is provided with multiple universal wheels 102 with locking buckles.

[0070] In this embodiment, the movement of the caster wheel 102 is controlled by setting a locking mechanism, which can be used to transfer castings and reduce the difficulty of operation.

[0071] This embodiment also proposes a radiographic inspection method for castings. This method utilizes the aforementioned radiographic inspection fixture for castings to inspect the castings. The method includes the following steps: 1) Clamping castings outside the X-ray machine room: The height of the first slider 104 and the crossbeam 204 is lowered by the first linear transmission assembly, so that the two clamping claws 303 are located on both sides of the two process chucks of the casting. The distance between the two second sliders is reduced by the second linear transmission assembly, so that the two clamping claws 303 clamp and fix the casting through the two process chucks. Then the height of the first slider 104 and the crossbeam 204 is raised by the first linear transmission assembly. 2) Move the main frame 101 to the X-ray room: Move the main frame 101 and the castings on it to the X-ray room, and adjust the relative position of the X-ray machine and the castings; 3) Radiographic inspection: Based on the zoning position of the casting, the first rotating component controls the left and right rotation angles of the crossbeam 204 and the casting, and the second rotating component controls the 360-degree rotation of the clamping jaws 303 and the casting, and the X-ray machine is used to perform all-round radiographic inspection on the casting.

[0072] In one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, to inspect the casting, the casting is first clamped outside the X-ray room. The support arm module is adjusted downward by controlling the screw 201 with a handheld electric gun. After being lowered to a suitable height, the casting with the chuck is placed in the middle. The bidirectional screw is adjusted using the second reduction motor 301 to clamp the chuck in the clamping jaws. The chuck is fixed by adjusting the locking screw on the clamping jaws. At this time, the second reduction motor 301 is also in a locked state, thereby preventing the casting from falling off and realizing a double safety lock.

[0073] After the casting is clamped, the handheld electric gun controls the lead screw 201 to adjust the support arm module to move upward and push the tooling cart module into the X-ray room. The relative position of the X-ray machine and the casting is adjusted by the caster wheel 102. According to the casting's partition position, the first geared motor 203 controls the first rotating unit 206 to realize the casting's left and right rotation angle; the third geared motor 307 controls the second rotating unit 305 to realize the casting's 360-degree rotation, thereby achieving precise positioning of the casting and blind-spot-free X-ray inspection.

[0074] In some embodiments of the present invention, when clamping other castings, the quick-change positioning pin on the second rotating unit 305 is removed according to the size and shape of the process chuck of the casting, and other clamping jaws are switched.

[0075] In some embodiments of the present invention, an inspection process is formulated based on the radiographic inspection of different castings, and parameters of the corresponding partition positions are recorded based on the data of the first scale 105, the second scale 308, the first scale 205, and the second scale 304, and fixed in the inspection process to provide reliability for the consistency inspection of subsequent products.

[0076] In some embodiments of the present invention, when the tooling vehicle wears out after prolonged use, three modules can be replaced appropriately to facilitate quick repair and improve testing efficiency.

[0077] In some embodiments of the present invention, after the X-ray inspection is completed, the tooling carriage is moved to the processing area to clamp castings with other process chucks for inspection.

[0078] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A radiographic inspection fixture for castings, characterized in that, Includes tooling module, support arm module and clamping module; The tooling module includes a main frame, a first track arranged vertically on the main frame, and a first slider slidably connected to the first track; The support arm module includes a crossbeam disposed on one side of the first slider, a first rotating assembly rotatably connecting the middle of the crossbeam to the first slider, and a first linear transmission assembly mounted on the main frame; the first rotating assembly is used to drive the crossbeam to rotate relative to the first slider around a rotating axis; the first linear transmission assembly is used to adjust the position of the first slider on the first track. The clamping module includes a second track arranged along the length of the crossbeam, two second sliders slidably connected to the second track, two clamping rods respectively mounted on the two second sliders, two clamping claws arranged on opposite sides of the two clamping rods, a second rotating assembly rotatably connecting the two clamping claws to the two clamping rods respectively, and a second linear transmission assembly mounted on the crossbeam; the second rotating assembly is used to drive the two clamping claws to rotate relative to the two clamping rods around a rotating axis; the second linear transmission assembly is used to adjust the position of the two second sliders on the second track.

2. The radiographic inspection fixture for castings according to claim 1, characterized in that, The surface of the clamping jaws that is in contact with the casting process chuck is made of an elastic material.

3. The X-ray inspection fixture for castings according to claim 1, characterized in that, The gripper is detachably connected to the second rotating component via a quick-change positioning pin.

4. The radiographic inspection fixture for castings according to claim 1, characterized in that, The clamping claw is a box-shaped structure with one end open, and the opening of the clamping claw is positioned opposite the other clamping claw.

5. The radiographic inspection fixture for castings according to claim 1, characterized in that, The first rotating assembly includes a first rotating unit and a first geared motor. The first rotating unit rotatably connects the crossbeam and the first slider. The first geared motor is mounted on the first slider. The output shaft of the first geared motor is connected to the crossbeam. The first geared motor drives the crossbeam to rotate via the first rotating unit. Preferably, the first geared motor is provided with a first scale for identifying the rotation angle of the crossbeam driven by the first geared motor.

6. The radiographic inspection fixture for castings according to claim 1, characterized in that, The first linear transmission assembly includes a lead screw, which is mounted on the main frame along the length of the first track. The lead screw is rotatable about its own axis and passes through a first slider and is threadedly connected to the first slider. Preferably, a limit baffle is fixed on the main frame at the top of the lead screw; Preferably, a first scale is provided on the main frame along the length of the first track.

7. The radiographic inspection fixture for castings according to claim 1, characterized in that, The second rotating assembly includes a second geared motor and two second rotating units. The two second rotating units respectively rotatably connect two clamping jaws to two clamping rods. The second geared motor is mounted on one of the clamping rods. The output shaft of the second geared motor is connected to the corresponding clamping jaw. The second geared motor drives the clamping jaw to rotate via the second rotating units. Preferably, the second geared motor is provided with a second scale for identifying the rotation angle of the gripper driven by the second geared motor.

8. The radiographic inspection fixture for castings according to claim 1, characterized in that, The second linear transmission assembly includes a double-ended screw and a third geared motor. The double-ended screw is mounted on the crossbeam along the length of the second track. The double-ended screw can rotate around its own axis. The two opposite threads of the double-ended screw pass through two second sliders and are threadedly connected to the second sliders. The third geared motor is mounted on the crossbeam, and the output shaft of the third geared motor is coaxially connected to the double-ended screw. Preferably, a second scale is provided on the crossbeam along the length of the second track.

9. The radiographic inspection fixture for castings according to claim 1, characterized in that, The main frame is equipped with multiple locking casters at its bottom.

10. A method for radiographic inspection of castings, characterized in that, The radiographic inspection method is based on the radiographic inspection fixture for castings according to any one of claims 1 to 9, and the radiographic inspection method includes the following steps: Outside the X-ray machine room, the casting is clamped: the height of the first slider and the crossbeam is lowered by the first linear transmission assembly, so that the two clamping jaws are located on both sides of the two process chucks of the casting; the distance between the two second sliders is reduced by the second linear transmission assembly, so that the two clamping jaws clamp and fix the casting through the two process chucks; and the height of the first slider and the crossbeam is raised by the first linear transmission assembly. Move the main frame to the X-ray room: Move the main frame and the castings on it to the X-ray room and adjust the relative position of the X-ray machine and the castings; Radiographic inspection: Based on the zoning location of the casting, the first rotating component controls the left and right rotation angles of the crossbeam and the casting, and the second rotating component controls the 360-degree rotation of the clamping jaws and the casting. The X-ray machine is used to perform all-round radiographic inspection of the casting.

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